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Then dendrimer-like polyamidoamine s based on the silica gel surface were prepared using Micheal addition of the amino and methyl acrylate,and ester-exchange of ethylene diamine and the ester group.

用硅烷偶联剂对硅胶表面进行氨基功能化,利用氨基与丙烯酸甲酯发生的Michael加成反应和乙二胺与酯进行的交换反应在硅胶表面合成了聚酰胺-胺树状大分子;利用红外光谱对PAMAM-SG的结构进行了表征,研究了溶液pH值、ρ(Ni2+)和温度对PAMAM-SG吸附Ni2+能力的影响。

Amino functional silica gel was synthesized by reacting silane coupling agent with silica gel. Then dendrimer-like polyamidoamine on the silica gel surface was prepared using Micheal addition of the amino and methyl acrylate, and ester-exchange of ethylene diamine and the ester group.

用硅烷偶联剂对硅胶表面进行氨基功能化,利用氨基与丙烯酸甲酯发生的Michael加成反应和乙二胺与酯进行的交换反应在硅胶表面合成了聚酰胺-胺树状大分子。

Ethyl carbamate, a known genotoxic compound, is mainly found in grape wine and other alcoholic beverages.

氨基甲酸乙酯(Ethyl Carbamate, EC)是一种基因致癌物,葡萄酒及其他酒精饮料中含有微量的氨基甲酸乙酯。

Synthesis of methylene-4,4'-di catalyzed by zinc oxide Various metal oxide were investigated in the synthesis of methylene-4,4'-di from ethyl carbamate, and a serious of ZnO/SiO2 catalysts were prepared by deposition-precipitation method.

氧化锌为催化剂合成4,4'-二环己基甲烷二氨基甲酸乙酯以氨基甲酸乙酯和4,4'-二环己基甲烷二胺的反应体系为研究对象,在考察多种金属氧化物活性的基础上,使用沉积沉淀法制备了一系列硅胶负载氧化锌催化剂,并对其催化性能进行了研究。

Gas chromatographic analysis of 2-chloroethyl ethyl carbamate WANG Yue-feng, YANG Rui, SHE Yong-hong, ZHANG Hong-chao (Sanonda Zhengzhou Pesticide Co., Ltd., Zhengzhou 450009, China) Abstract: Separation and quantitative determination of 2-chloroethyl ethyl carbamate was conducted using gas chromatography with FID using an OV-101 packed column and biphenyl as the internal standard. Column temperature was 190℃, the ignition chamber was 230℃, and the test chamber was 230℃.

2-氯乙基氨基甲酸乙酯气相色谱分析王跃凤,杨睿,佘永红,张宏超(沙隆达郑州农药有限公司,郑州 450009)摘要:采用气相色谱法,柱填充物为3% OV-101涂渍在 Chromosorb W AW DMCS (180~250m)上,柱温:190℃,气化室:230℃,检测室:230℃;内标物为联苯,用内标法对2-氯乙基氨基甲酸乙酯有效成分进行分离和检验。

With TEMPO(5 mol%) as the catalyst,N-methyl-N-phenyl-hydrazine(1.2 equiv.) as the amine source,the direct ortho-amination of 2-naphthols could be easily achieved.The reaction was carried out at room temperature under air atmosphere.

以5 mol%TEMPO为催化剂,1.2当量N-甲基-N-苯基肼作氨源,二氯甲烷为溶剂,空气中,室温下,实现了对2-萘酚邻位氨基化,可以高效的合成1-氨基-2-萘酚类化合物。

With TEMPO(5 mol%) as the catalyst,N-methyl-N-phenyl-hydrazine(1.2 equiv.) as the amine source,the direct ortho-amination of 2-naphthols could be easily achieved.

以5 mol%TEMPO为催化剂,1.2当量N-甲基-N-苯基肼作氨源,二氯甲烷为溶剂,空气中,室温下,实现了对2-萘酚邻位氨基化,可以高效的合成1-氨基-2-萘酚类化合物。

The effects of solvent type,concentration of the aqueous ammonia on the yields of target compounds were studied. The different results between 2,6-diamino-3,5-dinitropyridine (and 2,6-diamino-3,5-dinitropyridine-1-oxide) and 3-nitropyridien were analyzed.

探讨了溶剂类型、氨水浓度等反应条件对目标化合物产率影响,并讨论了2,6-二氨基-3,5-二硝基吡啶(2,6-二氨基-3,5-二硝基吡啶-1-氧化物)氧化胺化反应结果与3-硝基吡啶不同的原因。

The present thesis deals with the study of the direct oxy-amination of benzene to aniline with aqueous ammonia using hydrogen peroxide as the oxidant under mild reaction conditions (low temperature and atmospheric pressure).

本文采用苯为起始原料,以氨水为氨基源,过氧化氢为氧化剂,在温和条件下研究了由苯直接氧化氨基化合成苯胺的反应。

The influence of alkyd resin, selected amino resin and solvents on the low temperature curing and quick drying of amino enamel is discussed.

讨论了合成的醇酸树脂、选用的氨基树脂及溶剂对氨基漆低温快速固化方面的影响。

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